for me, this manga is somwhat good. Presenting a real modern real life problems, then mixing it up with a touch of fantasy "what if i sell my lifespan", then we get this as a story. maybe this manga wasnt and can never be one of my favs, but i am making sure it is one the story progression and meanings I will remember. It is not too bad and also not over the top, a so so. i like this, and hoping for whoever read this manga(and the novel) would cherrish their lifes more. by any mean, this is not a despairing manga.