- Die for Our Ship: Kai is despised in some fan circles due to being Ranmaru's Crazy Jealous Guy.
- Fetish Retardant: Enjouji, PLEASE take off your socks before having sex with Ranmaru.
- Jerkass Woobie: Kai. He may be a Spoiled Brat and a Crazy Jealous Guy, but his view of the world has been seriously skewered due to being raised in the Yakuza. Not to mention having learned about Enjouji and Hotaru on the day of his mom's funeral...
- Tear Jerker: The anime rendition of the incident that almost left Ranmaru crippled after saving Enjouji's life. Enjouji is normally a Tall, Dark and Snarky Jerk with a Heart of Gold, but seeing him bawl his heart out over the bleeding Ranmaru is seriously heartbreaking.