We magnify the residuals with 5 times to present the coherent dynamics. The resulted FFT data are plotted as a red solid line in Fig. (b) with resolved peaks. In (b), it shows the frequencies of 309, 384, 617 and 1418 cm -1 . The mode of 1418 cm -1 is close to the frequency of tuning mode and the frequencies of 309 and 384 cm -1 are close to the frequencies of coupling mode. There is also an additional mode at 617 cm -1 . To retrieve the coherent dynamics of each mode, we perform the wavelet analysis of the residuals and show the resulted data in Fig. ). The resolved dynamics of modes are marked as the dashed lines in the spectrum. By this, we are able to obtain the lifetimes of the identified modes. The dynamic profile of each mode is shown in Fig. . From these results, we show that the high-frequency mode of 1418 cm -1 has the lifetime of 582 fs, which equals to the timescale of SF process in tetracene. Thus, it implies that the coherent wave packet of 1418 cm -1 pass through the conical intersection during the SF process of tetracene molecules. In the low-frequency region, the mode at 309 and 384 cm -1 are close to the frequency of coupling mode (but not equal to the frequency of coupling mode), which show the lifetimes of 244 and 133 fs, respectively. It indicates that the coherent motion of coupling mode can pass through the conical intersection and splits into two modes. Based on the calculation, the lifetime of two low-frequency modes manifests that the resulted motion of coherence still persists for more than 200 fs during the wave packet passing through the conical intersection. Our calculations also show that the CT state mediates the population transfer in SF process of tetracene molecules. The new generated mode at 617 cm -1 shows the lifetime of 181 fs, which is close to the energy gap between two singlet excited states in tetracene molecules. The coherent dynamics presented in Fig. ) and (d) shows a complex interplay of coherences. It also highlights the interplay of excitonic coupling and vibronic interactions between the electronic excited states. In addition, we also calculate the population dynamics of the three-state model to show the difference of dynamics without the CT state. The detailed calculations and results are shown in the SI.