A manual transmission (M/T) having no torque converter, which is applied to a vehicle including an internal combustion engine (E/G) and an electric motor (M/G) as power sources and which is configured such that an operation of a shift operation member operated by a driver in order to establish each of a plurality of gear stages is achieved by moving the shift operation member on a shift pattern to a corresponding selection position by a selection operation, which is an operation in a left-right direction of the vehicle, and then moving the shift operation member from the corresponding selection position to a corresponding shift completion position by a shift operation, which is an operation in a front-rear direction of the vehicle, the manual transmission comprising: an input shaft (Ai) to which power is input from the internal combustion engine; an output shaft (Ao) to which power is input from the electric motor and from which power is output to a drive wheel of the vehicle; and a transmission speed change mechanism which operates, when the driver moves the shift operation member on the shift pattern to each of the shift completion positions corresponding to the plurality of gear stages (1-st to 5-th), so as to establish a power transmission system between the input shaft and the output shaft such that a transmission speed reduction ratio, which is the ratio of rotational speed of the input shaft to that of the output shaft, is set to a value corresponding to a corresponding gear stage, the transmission speed change mechanism being configured such that no power transmission system is established between the input shaft and the output shaft when the shift operation member is moved on the shift pattern to a shift completion position corresponding to a gear stage for motor travel for traveling by using only drive force of the electric motor without using drive force of the internal combustion engine, wherein the shift completion position corresponding to the gear stage for motor travel is disposed at a position on the shift pattern through which the shift operation member passes during a shift operation from a selection position corresponding to 1-st which is the greatest in transmission speed reduction ratio among the plurality of gear stages (1-st to 5-th) toward a shift completion position for 1-st. an input shaft (Ai) to which power is input from the internal combustion engine; an output shaft (Ao) to which power is input from the electric motor and from which power is output to a drive wheel of the vehicle; and a transmission speed change mechanism which operates, when the driver moves the shift operation member on the shift pattern to each of the shift completion positions corresponding to the plurality of gear stages (1-st to 5-th), so as to establish a power transmission system between the input shaft and the output shaft such that a transmission speed reduction ratio, which is the ratio of rotational speed of the input shaft to that of the output shaft, is set to a value corresponding to a corresponding gear stage, the transmission speed change mechanism being configured such that no power transmission system is established between the input shaft and the output shaft when the shift operation member is moved on the shift pattern to a shift completion position corresponding to a gear stage for motor travel for traveling by using only drive force of the electric motor without using drive force of the internal combustion engine,