Which app is The Wife I Despised Is My First Love?! (English-dubbed) originally from?

It was originally released on ReelShort.

Do I need to download an app to watch The Wife I Despised Is My First Love?! (English-dubbed)?

No. It plays in any mobile or desktop browser, so there is nothing to install.

Where can I watch The Wife I Despised Is My First Love?! (English-dubbed) online for free?: All 81 episodes are free on dramatap and play straight in your browser — no app download and no account needed.
How many episodes does The Wife I Despised Is My First Love?! (English-dubbed) have?: 81 episodes in total.
Which app is The Wife I Despised Is My First Love?! (English-dubbed) originally from?: It was originally released on ReelShort.
Do I need to download an app to watch The Wife I Despised Is My First Love?! (English-dubbed)?: No. It plays in any mobile or desktop browser, so there is nothing to install.