Jinsei Jojo na no da

From Stiletto Heels:

A 19 year old couple, Ayumi and Tora, envisioning living their lives for love decide to elope. However, the apartment their sempai introduced them too is completely run-down, and the manager is a severe woman. It was supposed to be a sparkling life, but reality was much harsher than the two of them could have ever imagined. Will Ayumi and Tora be able to overcome these obstacles, or does life have another fate in store for them?