Strawberry Vinegar (EP)

You'll earn this trophy the first time you eat Hamburger Steak at the restaurant which can only be done in one Ending, at the end of the Strawberry Kisses Ending.

See the Platinum Walkthrough [LINK] or the Strawberry Kisses trophy for more details and exact steps.

Towards the very end of the game, all four of you – the two girls, Mom, and Dad – all head out to a restaurant for food. While there, Rei gets to choose which meal to order for both her and Licia. This time, choose the Hamburger Rice to get this trophy.