Trying to find a manga based on its cover

[IrishWristClock]

So I have no idea what the plot of this manga is, but I'm hoping someone can identify it based on what I remember of its cover. From what I remember of it, it showed a grassy field and there were multiple people on the cover of the manga (I think it was a final volume cover), but in the center there was a guy with long hair wearing a white suit. The guy with the suit had either white or black hair. He kind of reminded me of L from Death Note. I think it had a slice of life tag on it. I'm kicking myself for not having clicked on the cover to find out more, but hopefully someone has an idea of what manga I'm talking about.

 

[Reiru]

@IrishWristClock no slice of life tag but last volume cover kinda fit your description https://mangadex.org/title/581/ouroboros

 

[IrishWristClock]

That’s exactly the one I was looking for! Appreciate it.