Oyasumi Punpun

Bringing back Harumin seems to be random. But take a closer look at p 90-91 from vol.2
Whose hands Punpun holds?
_ _ years later during Tanabata festival (as back then) they met again.
This time Harumin was on a verge of losing it, loosing his peace.
Meeting Punpun brought him back on track.
you can see how his expression changed during one last goodbye, you can even see a tear in his left eye.
He seemed somehow touched by this situation. His heart was no longer stone cold.

In conclusion Harumin is back to normal life, work, and finally the cycle continues - as seen on last pages-.
in a slightly better manner.

It's a good ending, maybe not what each of us was looking for, but still holds tight the whole experience.