Tamahiko Shima is the youngest son of the powerful and wealthy Shima family. Blessed with great fortune since his childhood, he grew up wanting nothing but affection from his oftentimes distant family. After losing his mother and crippling his dominant arm in an accident, Tamahiko fell into deep despair and is cast aside by his own father for his handicap. Condemned to live isolated in the countryside where he would not bring shame to his family's name, he resigned himself to dying alone—until one day, a young girl named Yuzuki Tachibana appeared on his doorstep, proclaiming that Tamahiko's father sent her to be his bride. As she takes care of Tamahiko, Yuzuki brings a feeling of springtime into Tamahiko's dreary life, allowing him to gradually heal from the deep emotional scars of his youth. Their lives slowly intertwine as both Tamahiko and Yuzuki taste the fruits of their first love.

Theatrical follow-up to Sasaki to Miyano, adapting the "Graduation Arc" of the manga. Miyano’s world of Boys’ Love manga turns to reality when chance leads him to Sasaki. Now, Sasaki wants to spend every opportunity with him.

In the northern Kanto area in Japan, there is Binan City… At Binan High School, as per usual, the “Earth Defense Club (lol)” was a club that did nothing. The club members Kyoutarou Shuzenji, Ryouma Kirishima, Nanao Wakura, Taishi Manza, and Ichiro Dogou nonchalantly enjoyed tea while having pointless conversations that amount to nothing. All of them have now gathered at Kurotama Bath after school. When Ryouma pulls Kyoutarou Shuzenji by his arm out of water that he claims feels too good, together with his towel comes a pretty boy in strange clothing. These five boys are then dragged into a battle for the heir of the magical kingdom, Honila Land...

The older boys are graduating school and recount their memories together. The next day everyone defends the graduation ceremony against Zundar and Dadacha's Second Button Monster but Yumoto struggles using his love power.