1. My review contains minor spoilers, I tried my best to keep it low as possible to not to ruin the experience for you.
2. I have compared it Usagi drop (if you are not familiar with it) it's somewhat same story, settings and atmosphere.
Plot: Single 23-year-old Kazama Masamune realized, he has a kid. During the season of cherry blossoms, his beloved passes away. He happens to meet a little girl outside work and realizes she is his daughter who was raised in secrecy by his lover.
-This manga is a hidden gem, it really gave me that complete satisfy feeling which I couldn't get from Usagi drop manga's ending. It's a really beautiful mid short story about a single father. All, I have to say about the story "My Girl" is that, it hits again and again with the feels train, never relenting until the end.
Genres- Drama, Slice of Life, Seinen, Tragedy, Psychological
Story- 10/10 (If I compare it with Usagi drop, I felt like reading a superior version of it. I really didn't like Usagi drop's 2nd half. It was utterly disappointing and Story is done by Sumomo Sensei who did many other notable works too like Kokoro Kikai, Chou ni Naru Hi, Nanairo Sekai)
Art-10/10 ( It is done by the author herself, if you don't know about Sumomo. She did the artwork of Hoshi no Koe and Watashitachi no Shiawase na Jikan (Our happy hours) too, but unlike these "My girl" is her original story)
Characters-9.5/10 ( I felt like, Kazama's late lover needs more flashbacks and character development, not everything was explained properly. Hence, -0.5 for this, aside from that everything is perfect. All other characters fits into the story naturally)
Overall-9.5/10 ( I loved it, I will replace Usagi drop with "My girl" in my top 10 list. My apologies, I keep comparing it with Usagi drop again and again, but I can't just stop it. "My girl" is everything that Usagi drop failed to deliver in the 2nd half.)
