Kōichirō Sakai

Takeshi Hongo is a promising young man with a passion for motorcycle racing. However, his dreams are suddenly ruined when he gets kidnapped by Shocker, the evil secret organization planning to dominate the world. After being remodeled into a cyborg, Takeshi escapes and swears to protect the world from the inhuman monsters.

This is the story of a winter day. Kagamihara Nadeshiko, a female high school student who moved from Shizuoka to Yamanashi, rode a bicycle to see Mt. Fuji, but unfortunately, the weather was cloudy and Mt. Fuji cannot be seen. Tired, Nadeshiko falls asleep on the spot and wakes up at night. This is her first time going there and she didn't know how to return. Fortunately, Shima Rin, a girl who loves camping, saves her. They lit a bonfire to warm up and the sound of the blazing firewood permeates the silence of the lake.

Ren Koishi, a housewife, suspects her husband, Teruo Koishi, of having an affair. One day, Ren follows Teruo when he goes out for work on his day off, determined to get to the scene of the affair. However, Teruo's destination was neither a company nor a hotel, but a hospital. Ren, who is suspicious, receives an explanation from his doctor that Teruo is infected with the 'adultery virus'. In Japan, there is an ancient term 'cheating bug', but the latest research has revealed that adultery and cheating were symptoms of a disease caused by infection with the adultery virus. Ren is unconvinced that his infidelity is caused by the disease and is doubtful whether her husband really loves her. Meanwhile, Teruo, who is trying to prove his love for his wife left and right, infects others one after another with the adultery virus. ..