It turns out that Shikimori-san came to troublemaker Hayase-san's rescue when they were in middle school! With Izumi-kun's help, Hayase-san sets out to make amends with the senpai she's long admired-but will she be able to tell Shikimori-san how she really feels?

Izumi-kun and Shikimori-san have decided to dedicate every moment possible to something that could determine their future as a couple: studying for their entrance exams! But there are so many fun events going on at school… In fact, summer and fall are full of one cool distraction after another! Amid this rollercoaster of temptation, Shikimori-san's secret ambition for the future is revealed…

The new student Hayase continues to give Shikimori trouble by ignoring the school dress code, but Shikimori refuses to back down from her approach of trying to achieve some mutual understanding. Kamiya provides some friendly support by being a role model to other students and encouraging them to follow the rules. However, it's Izumi who gets some unexpected results by inadvertently getting Hayase to open up about herself!

The school trip to Kyoto has been going relatively smoothly and everyone has been having a great time. But Izumi’s bad luck will always find a way. On the day of Izumi’s grand plans to visit every spot they all want to see, one misfortune after another threatens to ruin the meticulously designed sightseeing tour. Izumi and the group are tested by these calamities and in a crucial moment of difficulty, Saruogi reveals his true nature, for better or worse...

Izumi has been jinxed his whole life—if something can go wrong…he’ll probably wind up in the hospital. But he still thinks he’s the luckiest guy in the world! That’s because Izumi has a girlfriend who is smart, sporty, and always looking out for him. Shikimori is his knight in shining armor. In this heartwarming romantic comedy, rain or shine, underdog or hero, their gentle affection stays the same.

Shikimori and Izumi are high school sweethearts. They hold hands walking home from school, they flirt in the halls, they tease each other. But Shikimori knows what she wants, and how to get it, and she can turn from cutie to cool in an instant.

Izumi is hyper pumped-up about the upcoming school trip to Kyoto, and has even volunteered to be the leader of his group. His first task is to find another member to add to the gang in order to make a group of six. And Izumi’s mystery selection turns out to be Saruogi-kun, a boy who seems suspiciously similar to Izumi, albeit far more timid. With possibly two disaster-prone boys in the group, can Shikimori be a strong enough guardian angel to ensure that the trip to Kyoto is a memorable one (for good reasons)?