Strongman x (super innocent sadist) beast tamer
I don't know if the fairy was all in his imagination or not, but this couple is quite cute.
Vampire x human
I wish it was longer, but I love the cliche of the icy vampire melted by a genuine human.
1. Henai
2. Henai Maotoko-hen
3. Henai Fumouhen
Consensual Rape role play. Considering the mangaka, the lack of real angst is amazing. Somehow it ends up being super cute.
1. Henai
2. Henai Maotoko-hen
3. Henai Fumouhen
The sequel continues the "consensual sex" story-line of the first. Still a weird, but cute couple.
1. Henai
2. Henai Maotoko-hen
3. Henai Fumouhen
This one involves shaved/shaving-play. Still probably Harada's healthiest couple. It's the kismet of two people with weird tastes finding each other.
No words spoken at any time, but the story is really easy to understand and enjoy.
Monk x spider person(??)
Traveling companions, spider is devoted seme. There are a lot of questions still (for me) about the monk and his weird "sleeping" periods and what those mean. However, the spider is a perfect companion for him.
Incubus/siren-like powers are born to some members of this family. Both lovers have the power.
I like that they are sweet to each other. Also, very good timing. Nothing like the hero to save his lover just at the right moment.
Ch 1-3 They are really perfect for each other - Super wealthy seme x super naive/airhead uke. The whole story is just ridiculous as a premise, but it's sweet how devoted the seme is and how willing Reona is to go along with it all (or how completely oblivious he is to what is happening).
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Like your list and explanations!