Yume Yume okirukoto nakare
Kei-chan and Ippei are childhood friends. Ippei is outgoing and Kei-chan (narrator) is quite the opposite. Their familes are close and thus they grew up together. In high school, Kei-chan starts realizing that he likes Ippei. Ippei gets a girlfriend and Kei-chan acts indifferent. They start parting ways when they got older. Typical storyline but it's super cute and I am waiting patiently for updates.
Ginza Neon Paradise
Oh my....so much feels...Seme and Uke grew up together. Uke is a bookworm and Seme is a player. When in high school, they were in the middle of WWII. Their feelings were obvious to each other but they never confessed. Seme was draft to the war and took the Uke to wait for him--he embraced the uke before he left--3 years later, he showed up like nothing happened. The uke was pissed because he was MIA for 3 years, no letters and such. Very bittersweet story.
Gunjou no Subete