Avoid reading this garbage. I just finished this manga. 9 volumes and it was totally not worth the time. Asano the MC is the stereotypical harem male that avoid girls. He's a good for nothing. Sakuya the main girl is the most agressive tsundere I've seen in a long time. She's the most mean and selfish person. I don't know why Osamu Takahashi thought that was a good character idea. There's no way one can have empathy towards a total bitch. She's allways trying to force things her way and wants to control Asano and the rest character all the time. The story is average andeasy to follow, nothing that will give you headaches. The main problem with it, and something that I realised after finishing reading, is that it gets stretched all the way to the end. Nothing really gets solved until the very last episodes,so nothing really happens all the way until the end, and even then some things are left unresolved. You can read volume 1, skip to 9 and understand everything about this shitty manga, because everything in the middle is bullshit.

After watching the anime and hoping the manga was better, i'm left disappointed. I'm so sorry because it could have been way better. I guess sometimes we have to face reality. If i could go back in time I would say to my younger self not to read it, and explain exactly what i'm explaining to you right now.

A 1 score is fair for Isuca. A total disappointment.