Childe Ju from Someday I never knew. The chapter that introduces him is endearingly entitled "Little Orange", hence the name of the LoRa.
At a weight of 1, the outfit tends to be better, but the manhua style shows more. If you aren't super keen on having the outfit 100% perfect or having him wear something else, I would recommend a weight around 0.7-0.8.
As with all the models I put here, this tends to work better with cute oriented checkpoints. Using a model like AnyLoRa or AnythingV5 will usually produce an older character, which works because there is a time skip in the source material that I did not train have to train on then.
Enjoy!