A self-help book by Jinno-suke Kokoro, popular on social media. - Title: Pretending to be Okay When You're Not Okay - ISBN: 978-4-7811-2540 - Price: 1300 yen - Copies: 800,000 - Bonus: Trending on social media - Author: Jinno-suke Kokoro - Followers: 230,000 Thank you for viewing. I am selling this because I couldn't finish reading it, it didn't suit me, and I stopped reading it early on.