Makoto's older sister Ai is shocked to learn that Takeo is dating. Having secretly harbored feelings of her own for Takeo, Ai is suspicious of Takeo's girlfriend and launches her own investigation...

Rinko's birthday is fast approaching, and Takeo plans out their birthday date with Suna's help. Sensing something amiss with Suna, Rinko suggests inviting Suna to their date, but Suna says that he has something he needs to do that day...

Summer means going to the beach! Takeo and Rinko's crew get together for a beach outing. Always dazzled by Takeo's superhuman abilities, Rinko's plan is to set Takeo's heart a-flutter with her swimsuit, but will it result in anything more?

Mariya Saijou, a classmate of Takeo's, would not count running as one of her favorite activities, but she ends up being assigned to a relay at the school festival along with Takeo. He tries to help her improve through practice. Mariya, who barely knows Takeo, gradually comes to realize his rare qualities...

Takeo's long-awaited birthday has finally arrived. Rinko really wants to make it a memorable one by attempting a first kiss. But Takeo's obliviousness may ruin everything...

Takeo is over the moon over his new little sister, Maki. With Valentine's Day approaching, Takeo's heart is set aflutter again since he has never gotten chocolates from a girl who liked him in his life. He can't wait to see what Rinko will give him.

With help from Takeo and Rinko, Yukika finally manages to tell Sunakawa her feelings. Yukika takes it even a step further by inviting Suna to go on a date with her to a zoo! Yet despite having had a great time there, Yukika looks unhappy...

True love.