Warui-shogi Daily Puzzle | Day 1

Puzzle #0001:

Gote to play, mate-in-4

Well the main line:

Rxf7+, @soldier e7, Rxe7+, Kc6, @dabbaba c8, Kd6, @Kd7#. Main sideline

2... Kc8, @Kb7+, Kd8, @soldier d7#