If you're looking for manga similar to In the Walnut, you might like these titles.
Koudaka Atsurou was just standing on the bridge looking at the lights, he didn't expect to be tackled by a construction worker who thinks he's suicidal. Trying to come to terms with his estranged father's death, Koudaka contemplates the roads in life people choose.
Shun is a dancer who has yet to realize his dreams, but sees his friends achieve theirs. Waga, a man with a beautiful voice but who is a terrible singer, and a weak black kitten enter Shun's life...
Ever since he was a child, Maeda Taiki looked plain and shabby, and has never been popular. For these reasons, he wanted to at least have a good sense of fashion as an adult. So before he knew it, he became a shop attendant at a fashion mall. He has now found someone that he likes…. an employee at the fashion mall’s main department, Yagii Haruhisa. Not only is Yagii kind and handsome, he’s friendly with everyone he meets. He’s someone that Maeda simply can’t help but admire. However, Maeda is aware that he doesn’t stand a chance of loving someone like Yagii… That is, until an awkward question from Maeda causes Yagii to steal his first kiss?!
Lone wolf Soji met cheerful and sociable Mika on the school rooftop when they were 16. At first glance, the two seem like polar opposites, but they soon discover that they are in fact birds of a feather, both coming from an unhappy family, carrying all kinds of burdens deep in their hearts. They feel drawn to each other like moths to a flame, trying to compensate what they have lacked in life through a person they can finally feel at ease with. From teens to adults, their relationship and feelings slowly grow into something else...
Takuma is a super ordinary first-year high school student in the countryside who happens to be a (male) idol otaku. He spends all his free time working part-time in hopes of one day seeing his idols live in concert. However, one day, Kei, his bais, suddenly suspends his idol activities due to health problems. Takuma spends his days in despair until Kei moves into the house next door…
First place in midterms, winner in the relay. For academic-and-sports genius Ao, this is the first time he's wanted something from the bottom of his heart. And that was Midori, always second place, who saw himself as his rival. He can't control his love for him, and when he sees Midori, he's so happy that he can't help but run up to him. But, afraid to ruin their relationship, he carries the pain and longs for him late at night...
Gilbert is the illegitimate son of a wealthy man. When his father dies he is brought to the family castle where he must contend with his cold half-siblings, a family treasure and the kind but straitlaced butler named Gandolf.
Daisuke moved into his uncle Yoshikazu's home while his parents are abroad on a business stint. But why is he so bothered by Yoshikazu? Why can't he leave him alone? And why is he so comforted by him?