>>26677755For me it was when she debuted.
From the hand drawn intro to the hamtaro song and gremlin mixing I instantly fell in love. Through the next few months she just further solidified my crush on her by constantly showing off her power level and going on long tangents about Japan and old ass anime/games.
One particularly amazing stream was the zatsu where she talked about all her anime figures and other merch, it might've been when she did the room review stream. When she talked about how badly she wanted a Saya no Uta figure, the same figure I spent a month tracking down and buying from a 2nd hand seller because I also wanted it really bad for years, I knew I'd always love her.