I honestly hadn't considered this one overtly shipping but there are lots of pretty boys and they're all very close so they're easy to ship for sure.

There are mostly male characters who aren't afraid to get very close to the main male character, and yaoi is heavily hinted at with the 'flirting'

Does it count as gay if spirits don't have a gender?  I don't care, I'm calling it like I see it

I see boys holding hands and blushing, I call it gay; what can I say?

Besides the 'gender bender' of a girl who likes guys being reincarnated into a male body, you get the impression of other male characters being in secret relationships as well~

Well, it's more straight out BL in a sense- male character goes into otome game. But sadly it's a oneshot and feels very cut off, so while it fits this list, I'm not sure I'd recommend it.

You'll ship two guys so much if you have any inclination for shipping it's unreal, wow.

While the art is... something (lazy, it's lazy) even the summary says 'his guard or his lover?' referring to another male character.  I can't even say there are undertones, this should straight up be shonen ai.  It's 'smack you in the face' blatant.

Despite the main characters being two boys and a girl, the two main boys have so many more genuine moments together while the girl is an idiot- you can't help but ship them imo.

Main Character: Male

Secondary: Male Incubus

Need I go on?

Definitely some bl vibes in the first 20-ish chapters.  Guys calling guys cute, flowers behind other guys, shoujo manga background jokes, etc. 

My boys at it again, with the looks and the blushing. Aww yeah <3

I honestly don't think it's undertones. Main characters are p much made for each other

Idk about anyone else, but I started shipping the characters on the cover image pretty dang fast... lol I'm garbage XC

It's not undertones, this takes place in a BL novel, it's just not tagged as such so I'm shoving this in this list anyway

I dare you to see shirtless boys diving over each other to protect each other, carrying each other to safety, and holding up umbrellas in the rain and not call a ship. If that's not enough, one has insomnia that only gets better near the other after a series of incidents and I ship them way too much, ugh. Also the Orcs are far far too pretty wth

Idk, man, the guys are just WAY TOO CLOSE to each other, ALL THE TIME. I keep swapping my ships based on the scenes but I'm leaning towards a three-way ship honestly 👀