I Got Isekai’d and Now I Have to Rizz a Harem Protagonist?!

You are Krystian a descendant from Kaiser Wilhelm with shoulder long luscious hair, bad sight and round glasses. You are an autistic russian sleeper agent awoken from your deep slumber once his harem reached the size of 15 cute girls. Your objective is to rizz up Rudeus from Mushoku Tensei and destroy his harem from the inside by making him fall for you. Can you adjust in this strange new world? and more importantly can you make Rudeus fall in love with you before you do?