The naturally unlucky Izumi-kun faces yet another day of disaster after disaster. Even on his way to meet up with his girlfriend Shikimori-san in the morning, he runs into so many troubles that he's a mess by the time he sees her. Still, the cute, sweet Shikimori-san greets him with a kind smile. But when Izumi-kun is in trouble, the lovely Shikimori-san instantly transforms into the coolest, most heroic girlfriend you've ever seen! Fun days are in store for this couple of 1000% preciousness and their chill friends as they begin their second year in high school!

Summer begins at last! Izumi-kun joins Shikimori-san and their friends in deciding what they'll all do together over summer break. They decide to go to the river, but is the combination of a river and Izumi-kun's bad luck too dangerous? Then Shikimori-san says something amazingly cool... After some discussion, they all head to the mall together. Shikimori-san seems disappointed when Izumi-kun says he won't wear a swimsuit at the river. She says she won't wear one either, but then Izumi-kun does something that lights a fire in her...

Izumi-kun and his friends are busy getting ready for the school's cultural festival. Izumi-kun is working with the group in charge of making costumes for their class's display, and Shikimori-san is in the group working on decorations. They don't get many chances to talk, and when they each see the other having fun chatting with their groupmates... And then the festival begins at last. Izumi-kun is so busy his head is spinning, and this causes his unlucky nature to awaken yet again. On top of that, he's on duty in the library the next morning. The one on duty with him is Kamiya-san, whom he first met the previous year through the library committee. But she's acting a bit different today...

Preparations are underway for the school's athletic festival. Izumi-kun was hoping to avoid being placed in the highlight event, the boys and girls mixed relay, but unluckily enough, that's exactly what he's chosen for. But Shikimori-san and all of their friends end up on the relay team with him, so he feels like it'll actually be fun this time. The gang wastes no time starting to practice for the race, but it doesn't go so well for Izumi-kun and Hachimitsu. They refuse to give up, continuing to practice until the day of the festival comes. Hachimitsu seems to be in very low spirits before their event starts...

The day of the amusement park date has finally come. Izumi-kun is all fired up as he works out a plan to make sure Shikimori-san has a good time. After some shopping at a store that sells costume goods, the first attraction they head to is one based on the tale of Sleeping Beauty. The line is long, but since they're together, the time flies by. When they finally board the ride, it's so comfortable that Izumi-kun falls asleep, and when Shikimori-san sees this... The distance between them continues to shrink!