I'm looking for this yaoi where in the uke is a tsundere... If I'm not mistaken... He's a highschool student and the seme was way older... The uke saved an older man before and the grandchild of the older man likes the uke... I'm not sure but it seems that they are yakuza or something.... I don't really remember much... There's a scene though where in their house got burnt because of their cat... IfI'm not mistaken, the uke loves animals. I hope someone knows this yaoi... Thankyou in advanced :)
http://www.mangago.me/read-manga/ouji_ga_aishita_spy/