"단순히 감기에 걸렸어요. 감기가 심해서 며칠동안 기침하는 모습이 안쓰러워서... 글을 남겼어. 걱정시켜서 미안해요 ... 하지만 걱정마^^ 곧나아서 좋은모습 보여줄게! 대신에 언니가 나을동안 내가 twice 영상 올릴거야~ 미융스 솔로 비디오^-^♡ 그거 보고 기운내! 걱정시켜서 미안해.." => (She) just came down with a cold. Seeing (her) coughing heavily for several days my heart goes out to (her)... so I posted a message. Sorry to make you worry... But don't worry^^ (She'll) get better soon and show you (her) usual self in good health! And to make it up, I'll post twice as many videos while onni [my sister] recovers~ 미융스 solo video ^-^ Watch them and perk up your spirit~ Sorry to make you worry.. * It appears that the speaker is living with her older sister (or friend) who is suffering from a cold. That's how I understood it but I am not completely clear on that, so I left the pronouns in parentheses. You can adjust them as necessary.