It’s 「に」。 Contrary to what some people think, it is NEVER 「と」。
Worked with a partner on a dialouge and was docked maybe half a point or so because of that. Kinda mad at myself being an AKB fan and they keep repeating 「AKBに会いにいける!」. Also was kinda mad at my partner because he’s the one who changed that one part to と.