- #50 - The Secret of Umbra 5006-25-2023
- #49 - The Secret of Umbra 4906-25-2023
- #48 - The Secret of Umbra 4806-25-2023
- #47 - The Secret of Umbra 4706-25-2023
- #46 - The Secret of Umbra 46#46 - The Secret of Umbra 4606-25-2023#46 - The Secret of Umbra 46
- #45 - The Secret of Umbra 4506-25-2023
- #44 - The Secret of Umbra 44#44 - The Secret of Umbra 4406-25-2023#44 - The Secret of Umbra 44
- #43 - The Secret of Umbra 4303-06-2023#43 - The Secret of Umbra 43
- #42 - The Secret of Umbra 4203-06-2023#42 - The Secret of Umbra 42
- #41 - Chapter 41#41 - Chapter 4102-22-2023
- #40 - Chapter 40#40 - Chapter 4002-22-2023#40 - Chapter 40
- #39 - Chapter 3902-22-2023#39 - Chapter 39
- #38 - Chapter 38#38 - Chapter 3802-22-2023#38 - Chapter 38
- #37 - Chapter 3702-22-2023
- #36 - Chapter 3602-22-2023#36 - Chapter 36
- #35 - Chapter 35#35 - Chapter 3502-22-2023#35 - Chapter 35
- #34 - Chapter 3402-22-2023#34 - Chapter 34
- #33 - Chapter 33#33 - Chapter 3302-22-2023
- #32 - Chapter 32#32 - Chapter 3202-22-2023#32 - Chapter 32
- #31 - Chapter 3102-22-2023
- #30 - Chapter 30#30 - Chapter 3002-22-2023#30 - Chapter 30
- #29 - Chapter 2902-22-2023
- #28 - Chapter 2802-22-2023#28 - Chapter 28
- #27 - Chapter 27#27 - Chapter 2702-22-2023#27 - Chapter 27
- #26 - Chapter 2602-22-2023#26 - Chapter 26
- #25 - Chapter 2502-22-2023#25 - Chapter 25
- #24 - Chapter 2402-22-2023#24 - Chapter 24
- #23 - Chapter 2302-22-2023
- #22 - Chapter 22#22 - Chapter 2202-22-2023#22 - Chapter 22
- #21 - Chapter 21#21 - Chapter 2102-22-2023#21 - Chapter 21
- #20 - Chapter 20#20 - Chapter 2002-22-2023
- #19 - Chapter 19#19 - Chapter 1902-22-2023#19 - Chapter 19
- #18 - Chapter 1802-22-2023#18 - Chapter 18
- #17 - Chapter 1702-22-2023
- #16 - Chapter 16#16 - Chapter 1602-22-2023#16 - Chapter 16
- #15 - Chapter 1502-22-2023#15 - Chapter 15
- #14 - Chapter 1402-22-2023#14 - Chapter 14
- #13 - Chapter 13#13 - Chapter 1302-22-2023
- #12 - Chapter 1202-22-2023
- #11 - Chapter 11#11 - Chapter 1102-22-2023#11 - Chapter 11
- #10 - Chapter 1002-22-2023#10 - Chapter 10
- #9 - Chapter 9#9 - Chapter 902-22-2023#9 - Chapter 9
- #8 - Chapter 8#8 - Chapter 802-22-2023
- #7 - Chapter 702-22-2023#7 - Chapter 7
- #6 - Chapter 6#6 - Chapter 602-22-2023#6 - Chapter 6
- #5 - Chapter 502-22-2023#5 - Chapter 5
- #4 - Chapter 4#4 - Chapter 402-22-2023#4 - Chapter 4
- #3 - Chapter 302-22-2023
- #2 - Chapter 2#2 - Chapter 202-22-2023
- #1 - Chapter 1#1 - Chapter 102-22-2023#1 - Chapter 1
Yang Kiryong is an ordinary high school boy who has a classmate named Yoo Jae-Kyung, who is somewhat clumsy and clueless. Both have a very good friendship, but without any kind of love attraction. Until one day, by chance, Kiryong discovered the deepest secret of his friend and because of this his heart began to beat, will it be beats of fear or love?