Undertale / Deltarune Part 1: my introduction

(This post is deliberately spoiler-free, but my subsequent posts will contain spoilers for the various playthroughs, endings, secrets, etc. of both Undertale and Deltarune. Please consider playing these games first if you feel like you might be interested in them, as I'd hate to spoil anyone on something they might have genuinely enjoyed encountering while playing.)

I figure I'll begin with my history with The Undertale Franchise, to coin an awkward phrase. ( History lies within )