Good Luck! Ninomiya-kun

Shungo is surprised to learn that the new girl at his school, Mayu, and her brother, Mikihiko, are his new housemates. But, surprise! Mayu is an androphobic succubus and Shungo is tasked with helping her overcome her fear of men.

Mayu unknowingly insults Reika upon meeting her, and Reika can't let it go. After Mayu's brother proposes a high-stakes contest to resolve the problem, Reika simply can't back down from the challenge.

Hinako invites Mayu out on the town to get to know her better, and Reika puts her "get-rid-of-Mayu" plan into action. Will Shungo overcome the obstacles to reach Mayu in time?

When Shungo leaves for training, Mayu tries to help with some of the cleaning duties but only manages to make things worse. While trying to fix her mess, Mayu discovers a secret passageway and the girls end up in quite the predicament.

Reika spends the entirety of their beach vacation trying to one-up Mayu, but a relaxing trip turns into a nightmare for the group.

After being kidnapped by mysterious soldiers, Shungo, Reika, and Mayu try to escape. Who is behind this, and what is motivating the woman in the tiki mask?

Shungo comes down with a bad fever, and the ever-clumsy Mayu is left to nurse him back to health. Despite her best efforts, she just can't seem to come up with a cure.

The ridiculously picky Ryoko demands that Shungo make her some ramen, and fast! But after procuring only the finest ingredients for a special recipe, Shungo discovers that all of his efforts are in vain.

It's finally time for the school field trip and the boys' attempts to sneak a peek are continuously foiled by a very dedicated teacher.

Shungo, Mayu, and Reika spend their last day in Kyoto together, but things take a very strange turn.

Reika's succubus form takes over as she attempts to force Shungo into remembering his past. Right when things are about to turn nasty, Shungo is rescued by unexpected saviors!

Just as Shungo is going to restore Mayu's energy, Reika's succubus form orders Hosaka to attack! Will the battle conclude in time to save Mayu?!