for me it's a 8.5/10

What does “seme” mean I see it a lot but just get confused of what it means lol

In the Boys Love genre, there are two terms that are used to distinguish the characters in the relationship. The "seme" is what we use to refer to the top. The seme is the dominant male in the relationship, and typically "gives" or puts his dick inside his partner's ass. We use "uke" to refer to the bottom, who is usually the submissive one in the relationship and "receives" , or gets his ass fucked into oblivion. In this story, Keiki is the seme, which is why you will sometimes see people referring to him as such in the comments. Keep in mind that not all BLs follow this, so don't be surprised if you see a dominant uke and a submissive seme, or a "seke", which is a male who switches between dominating and submitting. I hope that this helps :)

seme is the giver uke is the receiver
you might see some guys that look like an uke but they are a seme
the one who rams the dick is the seme
the one that takes the dick is the uke

Unromantic is a good example of a dominant uke and submissive seme.

The other two terms that are often used in the BL genre and also in the Japanese gay community are 'Tachi' (samurai sword) and 'Neko' (cat), meaning more or less the same, Tachi = seme = attacker/strike and Neko = uke = To catch (it's usually use as baseball/sports term in japan).

Actually, contradicting myself slightly, the Quora I just read to confirm I wasn't saying stupid stuff is saying that Tachi and Neko refers more to the personality of the character (the one that initiate versus the one that is passive)

https://www.quora.com/In-Japanese-what-does-uke-mean#:~:text=Uke%20(based%20off%20what%20I,that%20plays%20the%20male%20role.&text=Other%20terms%20that%20are%20often,single%2Dedged%20samurai%20sword).

i’ve seen alot of bls with their japanese titles with neko and tachi