The Villain/passer-By/supporting Character Joins the Protagonist Group and Becomes the Core and the Single Male Has No Cp

I would like to read a book similar to "Lu Ren Yi's Comic Survival Guide". Ohhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhaaaaaaaaaahhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh! ! ! ! !