Would you please spoil the ending for me, if you don't mind??
A super late response, but from what I remember. Picasso draws his last picture, that being a clock. He passes out, and it's up to his friends to figure stuff out. Turns out the last drawing is about Picasso's trauma, the death of his friend. His friends encourage him to come back, and his friend challenges him to do something, which involves him getting fired up and leaving. But then he regrets it and wants to stay, but his friend, stays in the picture and bids farewell to him. He wakes up, checks his front pocket, and it's a note of his friend with her drawn as an angel. Picasso makes a club near the river, and all his friends are in it.
I read this series in books. There's 3, and the ending. Oof. It breaks my heart. Other than that I really suggest this manga if you're looking for something short and with a good plot ish.