Link: https://civitai.com/models/1403602/manga-art-style-lora-oror-sfwnsfw-oror-single-panelmultiple-panels-oror-diverse-girls-and-poses?modelVersionId=1586590

Lora weight = 0.6-0.9 Seems to work well for me , with 0.8 and 0.7 being best and some slight variations depending on the prompts .

Try to keep the negative prompts minimal.

In the positive prompts : First add some beautifiers/modifiers , then the general scene setting and finally the character specific trigger words for enhanced experience ! (Eg : manga art style , black and white/nothing , single panel/multiple panels + masterpiece, best quality, amazing quality, very aesthetic, absurdres, highres, anime coloring + indoors , classroom , windows open , 1girl , solo , standing , looking at viewer , one eye closed + school uniform , brown hair , long hair , purple eyes , etc)

You can also insert any characters of your choice by using another Character LoRA !