(W/A/CA) Akira Hiyoshimaru When fifteen-year-old Kaho Nikaidou leaves her sheltered home to start life anew in a Tokyo high school dormitory, the last thing she expects is to nearly get hit by a truck! Saved in the nick of time by a handsome stranger, Kaho falls head over heels for him and, after finally tracking him down, boldly confesses her feelings. Turns out Kaho's mystery savior, Kanade, is the son of Kaho's new landlord! The handsome object of Kaho's affection agrees to go out with her, but her newfound bliss is short-lived when it turns out that her new boyfriend is a fifth-grader!

(W/A/CA) Akira Hiyoshimaru First loves are always a little childish, but that's not what fifteen-year-old Kaho Nikaidou has in mind when it turns out that her mysterious new boyfriend is a fifth-grader? Although high schooler Kaho and fifth grader Kanade have started dating, Kaho is constantly at the mercy of Kanade's childish whims. And when a mysterious hottie with a Kansai accent - whom Kanade happens to call 'Aniki' - arrives, will unimaginable trials await the couple's blossoming love? A fast-paced super-love comedy filled with madcap heart-throbbing mayhem!

(W/A/CA) Akira Hiyoshimaru Though Kaho and Kanade break up due to Kanade's own immaturity, the fifth grader soon realizes just how precious Kaho is to him. Which leads to the completely mature actions of chasing her home, serenading her with piano-accompanied love songs, and even making an emergency marriage proposal! Surely the age gap between the two means marriage is impossible, but Kaho and Kanade tentatively exchange vows! Meanwhile, it seems like a new threat is waiting to test the young couple's relationship - and that busty high school girl and devilish college student are at the center of it!

(W/A/CA) Akira Hiyoshimaru First loves are always a little childish, but that's not what fifteen-year-old Kaho Nikaidou has in mind when it turns out that her mysterious new boyfriend is a fifth-grader! Kaho tells Kanade about her kiss with Atsushi. Any normal boyfriend would get mad, but Kanade only smiles back! Amid these complicated feelings, she ends up alone with Atsushi. Is this the start of a love triangle?

(W/A/CA) Akira Hiyoshimaru Adults who kiss even though they're not in love are weird. Kanade worked hard on the perfect hand-made birthday present to give Kaho for her birthday. But when he goes to give it to her, he catches Taga kissing Kaho in the rain! What will happen to this fragile romance?