<p>He lost his powers after using them multiple times per rotation. So, keeping in mind he made travel back-and-forth multiple times, and to keep increasing his profits, it might have taken more than 2 years without the powers if we take into account the time he spent traveling. But based on his promise, it only took him around 2 years to increase profits and start the school.</p>

CC BY-SA 4.0
2021-04-16T07:05:52.920Z
2022-07-26T16:29:42.733Z
2022-07-26T16:29:42.733Z
Subbu Sharma
<p>Two years. He was 16 when he left and he had time until before he was 18, because he would lose the powers then.</p>

CC BY-SA 4.0
2021-10-21T15:31:14.600Z
If he was 16 when he left, and he got back before he turned 16, wouldn't it have taken him *less than* two years? Specifically, it could have taken him any amount of time between one day and 1.99 years.
F1Krazy
CC BY-SA 4.0
2021-10-21T15:22:15.840Z
2021-10-21T21:58:16.070Z
2021-10-21T21:58:16.070Z
rafael
<p>I just finished watching Charlotte and I'm curious as to whether it is mentioned anywhere how much time it took him to fulfill his promise?</p>

CC BY-SA 3.0
2015-12-01T02:13:55.577Z
Judging by the fact that he was high school first year at the beginning of his journey and Tomori still wearing school uniform in the last episode, it tool him 1-2 years max.
Astral Sea
CC BY-SA 3.0
2015-12-01T05:54:32.230Z
@AstralSea Oh yeah. I only noticed Ayumi's uniform, and hence was afraid that the time period could have been as long as 3 years. Thankfully, it isn't :D. Was the exact duration mentioned anywhere?
Ashishgup
CC BY-SA 3.0
2015-12-01T06:21:04.913Z
No, it was not, re-watched the episode and did not hear anything about it.
Astral Sea
CC BY-SA 3.0
2015-12-01T06:22:55.240Z
I see. Thanks ;_;. If I'm not wrong, Charlotte isn't even adapted from any manga/novel, right?
Ashishgup
CC BY-SA 3.0
2015-12-01T09:11:37.283Z
Charlotte is Anime original, there is a manga adapation being made and an OVA coming out in March. However, there's currently not an answer to your question. We know they lose powers at age 20, and we know that he left soon after his [16th birthday](https://i.sstatic.net/vDuSU.jpg) so there was plenty of time that could have passed but as @AstralSea said the upper limit is their graduation date.
giraffesyo
CC BY-SA 3.0
2016-03-10T06:02:04.003Z
They lose powers when they turn 20.
giraffesyo
CC BY-SA 4.0
2018-08-29T13:38:53.910Z
One year iirc. I don't recall the proof, but it is around a year.
V. Courtois
<charlotte>
How much time did it take Yuu Otosaka to fulfill his promise to Tomori?
# How much time did it take Yuu Otosaka to fulfill his promise to Tomori?
Posted by: username_0 on 2015-11-30
I just finished watching Charlotte and I'm curious as to whether it is mentioned anywhere how much time it took him to fulfill his promise?
**Tags:** charlotte
> **Comments:**
> **username_1**: Judging by the fact that he was high school first year at the beginning of his journey and Tomori still wearing school uniform in the last episode, it tool him 1-2 years max.  
> **username_0**: @AstralSea Oh yeah. I only noticed Ayumi's uniform, and hence was afraid that the time period could have been as long as 3 years. Thankfully, it isn't :D. Was the exact duration mentioned anywhere?  
> **username_1**: No, it was not, re-watched the episode and did not hear anything about it.  
> **username_0**: I see. Thanks ;_;. If I'm not wrong, Charlotte isn't even adapted from any manga/novel, right?  
> **username_2**: Charlotte is Anime original, there is a manga adapation being made and an OVA coming out in March. However, there's currently not an answer to your question. We know they lose powers at age 20, and we know that he left soon after his [16th birthday](https://i.sstatic.net/vDuSU.jpg) so there was plenty of time that could have passed but as @AstralSea said the upper limit is their graduation date.  
> **username_2**: They lose powers when they turn 20.  
> **username_3**: One year iirc. I don't recall the proof, but it is around a year.  
---
## 2 answers
### Answer by username_4 on 2021-04-16. Score: 1
He lost his powers after using them multiple times per rotation. So, keeping in mind he made travel back-and-forth multiple times, and to keep increasing his profits, it might have taken more than 2 years without the powers if we take into account the time he spent traveling. But based on his promise, it only took him around 2 years to increase profits and start the school.
---
### Answer by username_5 on 2021-10-21. Score: 1
Two years. He was 16 when he left and he had time until before he was 18, because he would lose the powers then.
> **Comments:**
> **username_6** (2021-10-21): If he was 16 when he left, and he got back before he turned 16, wouldn't it have taken him *less than* two years? Specifically, it could have taken him any amount of time between one day and 1.99 years.  
---
