My System Was Hijacked by Shipgirls?

P.S.: The only Commander... To protect the world, Su Hao needs the System's help to win over one target after another. His targets include, but are not limited to: Ron, the mentally unstable florist; Hayataka, his childhood friend with a slight yandere streak; the ninja Arthas, lurking in the dark; the nun Vengeful Spirit, with her peculiar tastes; and the foreign princess Aurora... Wait, why are they all shipgirls? So... the targets I have to win over are shipgirls? Su Hao immediately breathed a sigh of relief. But as he continued his conquests, he began to feel that his System... had been hijacked by the shipgirls? After some back-and-forth and probing, Su Hao finally understood: his conquest missions and the System's prompts seemed to be issued by the shipgirls themselves... The author has had several completed novels flop. I'm no good at writing blurbs, so please head to the main story.