RISC-V is on the rise these days, so I thought I should study it, but there were no proper books or lectures, so I was at a loss as to where to start. Then, Dong-Hyun Kim gave a RISC-V lecture! I was a bit afraid of the unfamiliar architecture called RISC-V, but I already had a clear understanding of Arm after reading Dong-Hyun Kim's Arm book and listening to his lectures, so I trusted him and bought it right away. After listening to the lecture, I found that RISC-V is very similar to Arm. Of course, it is not exactly the same, but I think people who have a concept of Arm will not find it too difficult. I plan to buy and listen to all of Dong-Hyun Kim's RISC-V lectures that come out in the future. I believe that if I follow along closely, I will be ahead of others in RISC-V architecture. I will listen to the remaining lectures diligently. I sincerely thank you for always giving great lectures.