If you're looking for manga similar to Alley of First Love, you might like these titles.
After graduating from high school, Chiharu returns to Tokyo to start university, and spend another summer with his now-boyfriend Wataru. The two boys might be busy with their part-time jobs and schoolwork, but they’re living in the same city again at last, which sets off new sparks and adventures. In addition to their usual weekend movie plans, they shake things up with a night out at a fireworks festival before continuing their summer pilgrimage to a deserted island. And then, when Wataru misses the last train home, he spends the night at Chiharu’s. In return, Chiharu asks for just one thing…
Handsome Nishino Taiyou is an architecture student, but he can’t finish designing his house. In the shadow of the smile of the cheerful but poor Nanno, the room they share is slowly filling with love. Before long, old wounds from the past seem to be keeping these two from touching each other…?
Super serious Asahi Suzumura and laidback, easygoing Mitsuki Sayama might seem like an odd couple, but they made a deal; they'll vacation around the world and when they get back to Japan, they'll get married. As they travel from country to country, the different people, cultures and cuisine they encounter begin to bring them closer together. After all they're not just learning about the world, but about themselves too.
This manga takes place a few years after the two lead males have graduated from high school. One of them came out in high school, and the other was a scary senpai who kind of took care of him. But now they meet at the same office, several years later, where the kouhai has yet to come out of the closet...
Yuto works as a waiter at the Rainbow Forest Cafe. One day he sees a guy who looked like he wants to throw himself from a bridge. Yuto tries to save him and finds out he's none other than the famous former baseball player, Esaki.
After suffering a loss both at work and in his personal life, college student Sora feels crushed. A stiff night walk to process his thoughts leads him to a discovery: a handsome man sitting in a secluded spot in the park that’s perfect for stargazing. Sora and the man start chatting, and he feels comfortable enough to start talking about his problems–but he’s still stunned when the man kisses him! Although Sora initially writes off the night as an unexpected connection with a stranger, this isn’t the last he’ll see of the man who stares up at the sky.
Lately, a guy has been coming around to talk a lot to straight-laced library employee, Fukagawa. Oosawa is the manager of some very popular nightclubs and lives in a completely different world from Fukagawa. But no matter how Fukagawa acts coldly, Oosawa doesn't lose hope and every time he's touched, contrary to his demeanor, his heart stirs... The bittersweet romance of an obstinate heart gently coming apart.
When he was a child, Isao was inspired by a florist named Aiko and fell in love with flowers. After saving his father's company, Isao finally leaves his desk job to realize his lifelong dream of owning a flower shop, opening it in the same location that Aiko's shop used to be. Right before opening, he finds out that Aiko had passed away when he meets her widower Koutarou and their young son. Koutarou is utterly devoted to his son Zen and carries on the love of flowers that Aiko instilled in him. Thus the florist Isao falls in love with Koutarou, and tries to win his heart through the flowers they both love.