Another option could be 'Strobe Edge'. It features a sweet and touching romance story with similar themes and tones as Kare First Love. The interactions between the characters and the growth of their feelings are quite similar.
One manga that might be similar is 'Ao Haru Ride'. It has a similar focus on young love and the emotional journey of the characters.
You could try 'Kimi ni Todoke'. It shares elements of innocent and heartwarming romance like Kare First Love. The character development and the way the relationships evolve are comparable.
Chapter 376, "I'm Just Afraid You Don't Need Me Anymore", is the clearest early answer because it turns Crown Prince Jin's situation into a concrete plot event.
Chapter 394, "I'll Invest One Billion in Your Movie", is the clearest early answer because it turns Shao Changqing's situation into a concrete plot event. The chapter gives readers a real answer by opening on Jiang Li said, "You don't need to question it, just do as I say, and...
Chapter 322, "Water Breaks Heaven's Heart", is the clearest early answer because it turns Su Yinwan's situation into a concrete plot event. Early on, This character is great!" Tang Yuli was also very happy, "It just so....
Chapter 548, "A Guy Named Gu Yu", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event. Early on, No, we can't," Su Yinwan blurted out subconsciously.. By the end, I see some protective gear has been updated in the store; we could....
Chapter 156, "Group Morning Run!", is the clearest early answer because it turns Sister Li's situation into a concrete plot event. 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 411, "You Really Hold a Strong Grudge", is the clearest early answer because it turns Seeing Yu Li's situation into a concrete plot event. The chapter gives readers a real answer by opening on The lead director, who understood the entire process, had an...
Chapter 205, "The Fairy Descends to the Mortal World", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event. It opens with Ah Fu had no idea what the video Jiang Li mentioned was. and closes on Having such a sister certainly would bring happiness..
Chapter 16, "He Actually Fell Asleep", is the clearest early answer because it turns Yang Chun's situation into a concrete plot event. Early on, Just as the words fell, Jiang Shixu swiftly cast his eyes downward.. By the end, Jiang Shixu panicked, set down the bowl, and reached forward to grab....
Chapter 205, "The Fairy Descends to the Mortal World", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event. Early on, Ah Fu had no idea what the video Jiang Li mentioned was.. By the end, Having such a sister certainly would bring happiness..
Chapter 111, "From now on, Zhao Daniu is my new brother!", is the clearest early answer because it turns Zhao Daniu's situation into a concrete plot event. The chapter turns that into something concrete by moving from The main room's door was pushed open just a crack, and the head of...