I'd also like to address the blood. Anal sex is very differently than vaginal sex. The rules are different. Believe it or not minor bleeding/blood is very common in anal masturbation and sex. The walls of the rectum are super sensitive and thin and can easily start to bleed no matter how careful you are. This has to do with the tiny vessels near the surface of the tissue. Very much similar to how you gets nose bleeds if you blow your nose too much. It feels good but anatomically stuff isn't ment to go inside the rectum. Sometimes even a tiny bit of pressure can cause bleeding. I may be a girl but I anally masturbate myself and have bled a time or two even I was super careful. Unless the bleeding is severe or heavy you will be perfectly fine. Don't go on the Internet and play doctor, you'll just think the worst and freak yourself out. Its different from vaginal sex where you won't really bleed as long as you prepare and are turned on enough.
Tips for anal masturbation:
•Cut your nails! Long nails can cause bleeding!
•Always use lube. Unscented, plain lotion always works.
•Never use any form of soap (even conditioner) as a lubricant.
•Be gentle, you may start getting to into it and get to rough.
•Wash hands before and after.
•Make sure to be turned on
Tips for anal masturbation:
•Cut your nails! Long nails can cause bleeding!
•Always use lube. Unscented, plain lotion always works. Spit doesn't count.
•Never use any form of soap (even conditioner) as a lubricant.
•Be gentle, you may start getting to into it and get too rough.
•Wash hands before and after.
•Make sure to be turned on before attempting.
•Try to wait till after a bowel movement. Less dirty and more pleasureable due to various reasons.
•Its going to be messy almost every time, it isn't going to be nice and pretty like manga shows it to be.
Hope this helps someone
(=・ω・=)

I liked this one personally. Many accuse this of having too much rape but its honestly not that bad compared to the majority if yaoi manga. I'd like to point out that this rape thing is actually a common fetish. Many people enjoy and get off on the fantasy of being raped/molested. However this is simply fantasy and not real. It isn't here to support actual rape or say its okay. Its fucking porn. This manga a kink/fetish that infact many people have (me included). It ties in a lot with BDSM and humiliation play type dynamics.