NKKD-066 - My girlfriend got stolen by my hometown's worst bully after he showed up uninvited to my new place in Tokyo

I spent three years as a errand boy back in my hometown, living a dark life. But this spring, I finally started my college life in Tokyo and got my first super cute girlfriend. I was enjoying a wholesome, lovey-dovey relationship with Ayame, a sweet, lady-like girl, when suddenly, I got a text from the most notorious bully back home, 'Senior Waniguchi.' He told me he was coming to Tokyo for a concert and demanded to stay at my place. Being the weakling I am, I couldn't say no... and that's when my nightmare began.