Ep. 1: Rito escorts a drunken Haruna home while Momo pushes her harem agenda

Rito starts his day with Momo in his bed, a beating from Nana, and accidental groping by Lala. At school, he greets classmates and gets beaten by Yami. Momo reminds Rito of her harem plan, while Lala encourages Haruna to confess. During remedial classes, Haruna meets Nana, who shares a Deviluke sports drink. Momo joins them, asking about Haruna’s progress. Haruna loves Rito but fears losing Lala, citing Earth’s tradition of monogamy. Momo argues polygamy is common in the universe. As Nana and Momo debate, Haruna acts strange. Rito arrives, revealing the drink made Haruna drunk. Momo asks Rito to escort Haruna home to advance her plan. Rito avoids the principal and takes Haruna to her apartment. Drunk Haruna seduces Rito and mentions the harem plan. Haruna sobers up when Rito asks about her feelings. Akiho arrives, greeting Haruna in an embarrassing situation. Rito leaves quickly. Akiho apologizes while Momo questions Rito about his day. Meanwhile, Mea searches for Nemesis.
Episodes
- Ep. 1 · Rito escorts a drunken Haruna home while Momo pushes her harem agenda
- Ep. 2 · Rito shrinks into a mouse and Mea questions her reliance on Nemesis during an alien attack
- Ep. 3 · Nana confronts Mea about their friendship after learning her true nature as a weapon
- Ep. 4 · Summer Festival ~Beginning of the Festival~
- Ep. 5 · Rito feels awkward after trouble with Yui on a crowded train, while Mea joins dinner.