The first time I heard about Half & Half I wasn't really interest at first because it was only a one chapter manga and I thought that it wouldn't be too interesting because the character and story would feel incomplete but when I realized that a mangaka was Kouji Seo (The same person who created Suzuka), I immediately decided to read it and what I read was something that nearly brought tears to my eyes.
Story: The story is pretty good, extremely short and direct to the point. The best thing about this is that it is unique ( I have never read anything that comes close to it).
Art: The artwork is great and it has Kouji Seo's signature written all over it and I'm surprised at myself for not realizing it earlier when I saw the cover. (Kouji Seo is the best mangaka in terms of artwork in my opinion)
Character: The characters here aren't given much detail but this is expected because the manga is only made up of a single chapter with 40 pages, despite that everything the reader really needs to know about the characters are present.
Enjoyment: I don't really have much to say in this due to it being only 40 pages long but to put it simply, I really enjoyed it... so much so that the moment I finished reading it I immediately started writing this review.
Overall: The manga is extremely short and direct to the point yet it feels very complete and it left a lingering feeling of sadness within me yet it also made me because the story was directed superbly.