This manga is a 3/10.
A rare occasion where art carries the story in an almost one sided way;
Both main characters are sleaze bags, hiding their disrespect for the people around them as 'shyness' or introspection, when in truth they're just badly mannered bad friends and bad SOs; In real life, these types of people just end up pushing others away, not because of their introspection or the barriers they themselves put in front of others, but because they have a disdain for the bonds, mistreating them along the way.
Bad characters make for a bad story, which is a shame, because the overall atmosphere of the manga is warm, which really isn't there in essence, below the surface.