Overview: An anime character sparks a friendship between Jinpei and new transfer student Koma, who encourages Jinpei to pursue the girl of his dreams.
Overview: Mataro is psyched to be at Y Academy but learns the school has some troubling elements, like fights in the hallway and a supernatural peeping tom.
Overview: Fubuki experiences a series of confusing and repetitive mishaps that center around an unfortunate morning encounter with dog poop.
Overview: Soccer star Sakata is acting sloppily and Mataro suspects that one of the school's mysteries is to blame. It's time for a YSP club investigation.
Overview: In order to obtain some fortune-predicting chocolate, Jinpei and his pals join a very long line. But an upperclassman beats them to the punch.
Overview: Jinpei meets George Rukasu, a director at the school's film club. Later, George shows him some shocking footage of what he thinks is a real zombie.
Overview: Jinpei’s gang uncovers the school’s final mystery: Toiletta. Mataro gets a head start after he goes to the bathroom and is sucked down a toilet.
Overview: The YSP Club's recent spike in popularity angers the student council president. Meanwhile, Jinpei and his pals investigate an indestructible building.
Overview: After failing an exam, Jinpei and his friends must attend a prison-like re-education camp. They decide to break out, but escape may be impossible.
Overview: News editor Nena Tokuda asks the YSP Club about an invisible, delinquent-like being she's covering. They follow the trail to someone unexpected: Mera.
Overview: The school asks the YSP Club to test-run its recently repaired giant robot. But a jealous would-be pilot from another club wants the job for himself.
Overview: Fubuki takes her friends to the Future Science Club to see its new robotic exoskeleton. But they're shocked when it suddenly starts moving on its own.
Overview: The school principal wants to get rid of a smutty book before his daughter finds it. But each time he throws it away, it mysteriously returns to him.
Overview: A school event gives Jinpei and his pals a chance to test-play a VR game. It starts out fun, but soon a siren in the real world signals danger.
Overview: The YSP Club enters the Quiz Research Club's contest, hoping to win the million-yen prize. But Jinpei and his pals are up against a tough opponent.
Overview: Ms. Enra tasks the YSP Club with heading to the next Y Circle. Meanwhile, the school's disciplinary committee puts Kumako’s team under quarantine.
Overview: After Koma starts acting funny, his friends discover he's got a crush on his pretty new study buddy Saori and help him to confess his feelings to her.
Overview: After wreaking havoc at the Y-Mart, Jinpei and his pals must work on-site to repay the damage. They soon notice the place gets some weird customers.
Overview: Jinpei encounters a member of the similarly named "ESP Club," who challenges him to a supernatural battle. He must win or his club will lose its name.
Overview: Ms. Enra shows the YSP Club some strange footage, leading Jinpei to suspect the normally helpful Mr. Usumizawa is behind the Onryo’s erratic behavior.
Overview: The YSP Club gets an inquiry from a girl who sees the same strange dream every night. Jinpei takes her to a new club that researches reincarnation.
Overview: After vlogger Yokokin visits Y Academy, Jinpei gets jealous of his fame and decides to make some videos of his own. But his ideas are pretty boring.
Overview: Ranto Kirigakure needs a powerful ally to combat the draconian Public Morals Committee and, together with the YSP Club, approaches the school's mafia.
Overview: After changing into the fearsome Sky Snaker, Chiaki literally blows Jinpei away. Jinpei transforms into Blue Moon, but can't really fight back.
Overview: Jinpei and his pals suspect that extraterrestrial forces are possessing Nayu and decide to investigate her, leading them to a team of female hackers.
Overview: Lots of boys are stopping by Ranto's classroom to check out the beautiful new transfer student. But she seems oddly interested in Ranto himself.
Overview: After the Public Morals Committee shuts down Y Lab, former member Haruki joins Mataro's superhero club, but a powerful watch soon sparks conflict.
Overview: Summer vacation is here, so Jinpei and the other students still in the dorms decide to go camping. Nayu prepares to ensure they have a terrible time.
Overview: Y Academy is abuzz with news about the escape of their well-known gorilla. Meanwhile, Jinpei and his friends hunt for a fabled mushroom in the forest.
Overview: For summer vacation, Ryusuke heads home to his family's countryside manor. Despite being in familiar surroundings, he senses that something is off.
Overview: After Koma doesn't come home one day, his mother shows up at Y Academy. She seems very kind and gentle, but there's another side to her personality.
Overview: At the start of a new term, the YSP Club investigates a slew of recent alien sightings, noticing that the same thing has gone missing from each site.
Overview: Ranto visits a fortified research facility to bring back the Y Lab and investigate Nayu. Jinpei and his friends witness a hair-raising transformation.
Overview: Kuka reveals her true identity to her friends at the new Y Lab. She then has them place beacons around the school to root out the alien on campus.
Overview: Heading to the third Y Circle in search of a new addition to the team, Jinpei and his pals underestimate the desert heat and call Ranto for help.
Overview: Jinpei, Koma and Mataro notice that they are feeling strangely forgetful of late. Meanwhile, the Onryo try to escape from Elzemekia's barrier.
Overview: A terrifying feline monster chases Jinpei around the school. Just as the beast has him cornered, Kuka arrives on the scene with a useful invention.
Overview: Earth Walker swiftly repels the enemy, but Elzemekia threatens to erase Ranto from existence. A familiar but unexpected face comes to the group’s aid.
Overview: Nayu recounts what happened to her home planet. When the newly formed student council puts pressure on Eruna, she responds with a drastic declaration.
Overview: After Eruna captures Ema, Ranto forms a special spy team to infiltrate the tower, destroy the mind-control machine and rescue their friend.
Overview: Chiaki recognizes a team of invading alien canines. Ema tries to return a dropped medal to Jinpei as he is transforming, but something goes wrong.
Overview: Mataro awakens to discover that the entire school has been whisked away to the middle of a vast desert. Ryusuke and Chiaki try to find their bearings.
Overview: Eruna easily takes over the entire world. Jinpei and his friends try to transform but discover that their watches don't work within the castle walls.
Overview: With time running out for Ranto, Nayu proposes destroying the transformation-preventing machine and reveals the surprising key to success: Mataro.
Overview: As Ranto's punishment draws near, his friends and allies divide into platoons and begin their invasion of Eruna's highly fortified castle.
Overview: Junpei and his pals prepare for the aliens' return. Meanwhile, Mr. Usumizawa finds a book that tells the tragic tale of a queen on an icy planet.
Overview: Willing to do anything to protect her home world, Elzemekia attacks the school. Earth Walker and Deep Shadow Galaxy team up to put a stop to her.
Overview: When the principal announces a school festival, the student council reforms to help make it a success — and also to prepare for the next alien attack.
Overview: With just 10 minutes until the aliens attack, the YSP members must delay the impending assault and power up. Koma and Jinpei's mentor arrives to help.
Overview: The YSP heroes fly off to take down enemies placed at volcanoes around the globe, but the speedy battle exhausts Jinpei so much that he falls asleep.
Overview: Jinpei and Koma combine into their strongest form and pursue Mazera Bolt to the school building. But the fight seems futile even with Ranto's backup.
Overview: In his new Black Cat form, Jinpei and his friends prove more than a match for Mazera Bolt. But their plan to destroy the black hole hits a snag.
Overview: Flustered by an encounter with Jinpei's doppelgänger, Mataro tells the group what he saw. Shortly after, Jinpei meets the lookalike: Lime Ashiya.
Overview: High school student president Gomanda calls for the middle school students to be expelled for their antics and soon finds ways to enforce his will.
Overview: Jinpei and his pals head to the high school to confront Gomanda directly, but the fantastical setting makes them feel like they're on a field trip.
Overview: With help from some knowledgeable allies, the group infiltrates Gomanda's headquarters. However, the path to their enemy proves deceptively tricky.
Overview: Jinpei and his friends are anxious about the upcoming battle against the high school, but their mentor teaches them an impressive new technique.
Overview: The battle between the junior and senior high schools finally begins, but Gomanda’s oddly combative view toward the younger students worries Susano.
Overview: Gomanda reveals the cause of his hostility toward the junior high: an ominous visit from an intimidating school consultant named Chitei.
Overview: A wormhole transports Jinpei and his friends to the legendary ancient civilization of Atlantis, where Rana finally reveals her secret identity.
Overview: After Amana treats the students to an Atlantean feast, Lime talks of his past and resolves to take on Ozma. But Jinpei won’t let him do it alone.
Overview: Now conscious of his true self, Lime vows to sacrifice Atlantis to save Earth. But Jinpei, believing that all life is connected, stands in his way.
Overview: A glum Mataro reveals that his family will be moving to America for good. Jinpei and his friends get to work planning a grand farewell party.