Ch. 1-3,5.5: One day, Daiki, an idol, mistakenly enters the dressing room of Arihara, a talented actor known for being mysterious and aloof, and discovers he's actually a clumsy guy with a sweet tooth
Ch. 4: Chiaki and Touma have been best friends and lovers since high school. However, now that Chiaki is a popular and busy actor, Touma is rethinking their relationship
Ch. 5: Takeuchi has a fetish for shaven heads and Tokida's head is his ideal type, so Tokida allows Takeuchi to touch it once per day
Mr.Arihara's Secret Circumstances