Who killed Cok Robin in the manga?

Muzan was ultimately defeated by the collective efforts of Tanjiro, Nezuko, and the other demon slayers. Their teamwork and perseverance were key to ending Muzan's reign of terror in the manga.

I have no idea. Maybe it was a mysterious villain or a wild animal.

As of now, Bakugo hasn't been killed in the manga. The plot hasn't taken such a turn. The character is an important part of the ongoing narrative and remains active.

At present, in the manga, Gojo is still alive. There's no event of his being killed yet.

Sukuna is a powerful and persistent presence in the manga. So far, no one has succeeded in eliminating him.

No one killed Naruto in the Boruto manga. He's still alive and kicking!

In the manga, Deku has not killed anyone. His character is centered around being a hero who uses his powers for good and avoiding lethal force. He believes in rehabilitating villains rather than eliminating them.

Since we have so little information about 'little cok grinding stories', it's impossible to give accurate examples. But if it's related to grinding in general, there could be stories of the tools used, like a small hand - powered grinder, and the stories of the people who used it day in and day out, how they maintained it and the conversations that happened around it during the grinding process.

I'm not entirely sure what 'little cok grinding stories' specifically are. It could be some unique local tales or perhaps something very specific to a certain group or place.

It could be Nightwing. He was once Robin himself and has a special connection to the current Robin. Nightwing might hear about the kidnapping and step in to save Robin, using his own unique fighting style and experience.