The Diamond Sleeping in the Sea

Tokyo Seimenjo is a udon franchise restaurant with the motto "Quick, cheap, and delicious." The restaurant has a lot of regular customers, but their manager has been on maternity leave for the past two months and a reliable staff member has just quit. The four other staff members, Haruto Aoi, Yoshio Midorikawa, Rin Momota, and Setsuko Kimoto, feel uneasy about the situation. At that time, 27-year-old Kotarō Akamatsu is sent to the restaurant as the new manager. He previously worked for a hotel, which is the parent company of Tokyo Seimenjo. Kotarō Akamatsu assures the staff that he knows how things work at a restaurant, but he works there like he is still working at a hotel. He is overly polite to the customers and he seems very nervous while working. The staff members become embarrassed.

As a 24-year-old woman, Ogata Makoto doesn't like to show her true self or draw attention to herself in her private life or when she is at work. This is because she doesn't want to be disliked. One night, Ogata Makoto had an accident. The accident causes her to lose the memory of herself. She finds a male ring in her bag, but she doesn't remember who she was going to give the ring to. Soon, three men appear in front of Ogata Makoto, and the ring fits perfectly on all three of them. One of them proclaims himself as her ex-lover, one man claims to be her only male friend, and the other man claims to be her man of fate. Each of them has their own lies.

Shian is a woman whose boyish looks attract her attention from other women who think she's much more attractive than the average guy. However, she struggles with two issues, an extreme fear of men and excessive meddling from her mother. Suddenly appearing before Shian was beautiful college junior Ritsuko. As kind-hearted as she seems, she's actually an obsessive stalker who has feelings for Shian. Meanwhile, Shian starts working part-time at a women's cafe, where she meets head chef Hasumi Yuushin. Although he is a man, she realizes she doesn't find herself panicking around him, but beneath Hasumi's true facade is that of a playboy. She seeks help from Hasumi to overcome her fear, however, Hasumi proposes mediating between her and Ritsuko as a condition, and the two of them form a 'secret alliance'..."

A psychological thriller centered on Sakai Yoichi, a freelance video director, and Mitsumi Kei, a piano teacher who moonlights as a serial killer. When Yoichi, who is stuck in his current situation doing small jobs to make ends meet, returns to his office, there’s a package waiting for him. Inside is a human finger, and the message for Yoichi to get in touch if he’s interested to “document his activities.” Yoichi was going to call the police, but after considering, he decides instead to contact the sender. The person he meets at the designated house is none other than pianist Mitsumi Kei. This encounter leads Yoichi to continue documenting the murders, but what awaits him as a result of this decision… remains to be seen.

Despite being famous on social media as the “Angel of HR,” Hitomi Mamoru is unhappy with her job. Upset one evening, she goes out drinking, spending the night with a devilish stranger who changes her life!