What Specific Characteristics I'm Looking For: MC who doesn't always do the action himself Mostly Provide opportunities/help Mostly watch others story and fate
I’m Really Not The Demon God’s Lackey... I guess? MC is a bookstore owner who likes to give advice and chicken soup to his customers, and unknowingly the advice (and books) he gave/lent really have a big impact on his customers. And one manga where the MC is literally a bystander character and stay true to that role: Zettai BL ni Naru Sekai vs. Zettai BL ni Naritakunai Otoko. It's really amazing how MC is able to avoid every single flag that may lead to BL route...
You know what, it really reminds me of Trafford's Trading Club . but its... just read it while you enjoy it
The Zettai BL is a manga that even people like me who do not read or watch Bl can enjoy. Truly a great suggestion.