Fujioka Maito

Edo, 1863. Aisuke Kajiki, a young blind swordsman, is entrusted the son of his best friend Toramaru Sakakibara, who is about to join the Shogun's Samurai Unit and promises to train him well. However, after Toramaru's death in battle, Eisuke drowns in a river and is transported in time to present-day Tokyo. Eisuke and his descendant, Ryusei, a college student, go to meet Toramaru's descendant, Taiga, a swimmer. The blind samurai's promise to his best friend in Edo is fulfilled 160 years later in present-day Tokyo through para-swimming.

Nishina, Maya, Shiro, and Aoi are four good friends in their second year of high school with good looks but disappointing personalities. The four who decided that they will never fall in love, formed their own club, known as the "Muda-bu" (Useless Club), which focuses on researching silly themes and uploading them on social media. One day, they decided to do an experiment from a manga that says, "If you run with a piece of bread in your mouth and bump into someone, you will fall in love". While trying to conduct the experiment, they accidentally bumped into someone while having a piece of bread in the mouth.

The protagonist Hiroshi Kokusho was an ace rugby player in his high school days attracting national attention, but his forceful play led to an injury. Condemned by his teammates and becoming isolated, he retires. After graduation, he lives on his own but fails to get a regular job, living a dizzying, carefree, day-to-day life. One day, after getting involved in a fight leads to the point of getting the police involved, he is fired from his job at a construction site and is evicted from the apartment he lives in for nonpayment of rent, leaving him at complete loss. Then a man comes to him and says, “let me introduce a job that's perfect for you!” “A dormitory and three meals included! So perfect for your physical strength which you are so proud of!” The job is in fact at a “Ground Self-Defense Force” which protects the peace and security of the country…