Well, 'Ao Haru Ride' is quite similar. It has a similar theme of young love and emotional growth.
I'd recommend 'Kimi ni Todoke'. Both have a sweet and heartwarming tone, focusing on the relationships and personal development of the characters. Also, the art styles are somewhat alike.
You might like 'Strobe Edge'. It shares the element of teenage romance and the challenges faced by the characters, much like in Orange Marmalade. The character interactions and story progression have similarities too.
Look to Chapter 121 for the clearest answer. It begins with Seeing that Wen Jiaojiao's condition had improved significantly, Director..., keeps building through A doctor, donned in a white coat, hurriedly got out and immediately asked..., and lands on You're supposed to be a man who conquers.
The best chapter pointer here is Chapter 153, "Word Spreads, Director Sun Takes the Lead in Shipping the CP!". It opens with Wisps of smoke gradually rose from the small kitchen. and closes on After leaning in, he saw Jiang Li and Zhao Lang inside the kitchen..
If you want the clearest chapter reference, go to Chapter 134. Early on, After a brief noon rest, the production team was up to their antics again.; later, the chapter leans on Just as several guests had finished their relaxing hot showers and were....
A practical answer is Chapter 123, because it turns the idea into a concrete scene. The chapter opens with After He Yun also carefully rolled up her trouser legs and walked down..., adds pressure through Master Jiang is awesome!!!] [Those who said Sister Li had insider help can..., and ends on.
The best chapter pointer here is Chapter 162, "Jiang - Boyfriend Power Explodes - Li". It opens with He Yun then realized what was happening and subconsciously wanted to check... and closes on Having heard the news, Director Sun personally came with staff to pick....
A practical answer is Chapter 180, because it turns the idea into a concrete scene. The chapter opens with In the end, everyone received gifts that were completely opposite to what..., adds pressure through Jiang Yan is Jiang Li's brother;
The best chapter pointer here is Chapter 156, "Group Morning Run!". It opens with Flash Change, who was always tardy, was late again today. and closes on Soon after, the meditative He Yun also walked over..
Chapter 138 is the strongest chapter-level answer because it starts from Is there such a good deal? and follows through on Could it be that the poison also had a side effect of making a person more....
Look to Chapter 115 for the clearest answer. It begins with Jiang Yan was woken by a loud crowing noise., keeps building through Annoyed, he opened his eyes and saw that the hen, which should have been..., and lands on [Pure bystander, wasn't Jiang Yan known as a notorious playboy?.
The best chapter pointer here is Chapter 133, "Teacher Du, Please Reconsider the Termination of the Contract". It opens with Watching Jiang Li and the others finish their meal and tidy up the table,... and closes on It was only after she shared the concept and purpose of the show with him....