Hey-- thanks a ton! We're always happy to hear people like Tomai (especially because we'll be adding some new content to the game soon) and I'm always personally so happy to hear people like Burdoc~ I'd love to recommend AWOO to you as well; since it's written by the same person and also draw by me!
Anyways-- about the endings! Usually we would just recommend you buy and check out the endings guide (which can be received by donating $1 to the game!) but since you've already gotten so many endings already; I'll give you a hint!
You're actually missing *two* endings if your list here is correct! So I'm going to suggest to you; Tomai can't become a fully rounded leader by just spending time with JUST his Dad or JUST the Lady, y'know? And once you find this ending; there's also a variant on it involving Burdoc and Malik. So try that out for size! (And to be clear; the endings guide is much less cryptic than this-- so check it out!)