Sure did. The manga of Jibaku Shounen Hanako-kun has ended. It might have been due to the creators having told the story they wanted to tell or reaching a natural conclusion in the plot.
Well, the 'jibaku shounen hanako kun light novel' has a really interesting plot. It's centered around the school's supernatural happenings. Hanako - kun, being a ghost, has his own backstory and motives. There are other characters too, like Nene, who get involved in these spooky events. They have to deal with different types of spirits, some friendly and some not so much. The story also delves into the relationships between the characters, how they grow and change as they face these otherworldly challenges.
The main characters are Hanako - kun, a ghost who haunts the girls' bathroom, and Nene. Hanako - kun is mysterious and has his own set of powers and secrets. Nene is a girl who gets involved with Hanako - kun's world of the supernatural.
Hanako-kun's story in the manga was full of twists and turns. He encountered new friends and enemies, and his powers evolved as he took on more difficult tasks.