Alya is a transfer student enjoying popularity at her new high school, often sporting a cold shoulder while earning high marks in class. She ignores her nerdy classmate, Kuze Masachika, except for when she blurts out a flirtatious line to him in Russian. Little does she know, Kuze understands Russian, though he pretends not to. Let’s see where this wacky love story takes them!

In his past life, he was known as Demon Lord Varvatos, an all-powerful magic user and ruler. But he was lonely after the loss of his friends and loved ones during his rise to power, so in his dying moments, Varvatos cast a reincarnation spell so that he'd get a second chance at just being a normal guy. At first it looks like that's going to work – he's reborn thousands of years later as villager Ard. Unfortunately for him, his memories are still intact and he's not aware just how much has been lost over the time he spent not existing, and it looks like that's going to cost him his normal life.

One lonely, gloomy fifth-grade girl is the target of her classmates' relentless bullying and teasing—that is, until a new kid arrives on the scene. Friendly Takada is as clueless as he is well-meaning, but somehow he possesses the magic ability to start drawing "Grim Reaper" Nishimura out of her shell. As the elementary schoolers experience all the fun of a childhood summer together—from going to the pool to picking sunflowers to watching fireworks—an unusual friendship blossoms!

Toya Senji is talentless. He's tried everything but he can't seem to excel at anything no matter how hard he tries. Then he meets Haito, a Kendo champion and... humanity's protector? She uses the Stem of Reincarnation to draw on the abilities of her past lives, but it only works when she slits her own throat. And now she wants Toya to join her?!

Childhood friends Yukiya and Miku share everything…except their feelings. Ever since sixth grade, they've played a "love game": they take turns saying "I love you" and whoever gets flustered first loses. Now in high school, their hearts are closer than ever—but will they finally find the courage to confess?