metadata should be
Artist: 柊優花
Romanised Artist: Hiiragi Yuka
Title: おねがいダーリン
Romanised Title can be Onegai Darling or ONEgai Darlin'
Genre should be Pop.
About source,
According to RC metadata section, you can leave it empty.
About tags,
Kantai Collection isn't really associated with this song, you can add followings into tags.
one
nanahoshi kangengakudan
cover
jpop
japanese
把 "【mmd艦これ】第六駆逐隊でおねがいダーリン" 刪掉
還有你description裡面的連結失效了可以拔掉LOL
第三段的 kiai 在低難度（EN）中在 02:44:902 - 這裡有一小段斷掉了；而 HI 都是連起來的，雖然應該是沒有規定要每個難度都統一，但只斷了這麼一小段感覺很奇怪，還是把它連起來吧？
mapset verifier is a tool that detects most unrankables. it's better to self-check them before asking for mod for your information.
->https://osu.ppy.sh/community/forums/topics/943895
adding 44 byte silent sliderslide as soft-sliderslide.wav would sound nicer in most maps as sliderslide sounds noisy especially in calm parts
->https://up.ppy.sh/files/blank.wav